Cov yam ntxwv ntawm 904L Stainless hlau
Cov yam ntxwv ntawm 904L Stainless hlau
904L stainless hlau yog super austenitic stainless hlau paub txog nws qhov tshwj xeeb corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv cov kua qaub muaj zog xws li sulfuric thiab phosphoric acids, ua tsaug rau nws cov nickel siab, molybdenum, thiab tooj liab cov ntsiab lus. Nws cov yam ntxwv tseem ceeb suav nrog cov ntsiab lus qis carbon (zoo weldability), tsis yog - cov khoom sib nqus, zoo heev formability, toughness, tsis kam mus rau chloride kev nyuaj siab corrosion cracking (SCC), thiab zoo kub kuj mus txog 400 degree. Nyob rau hauv ib puag ncig corrosive, 904L stainless hlau ua tau zoo dua 316L stainless hlau, ua rau nws zoo tagnrho rau cov tshuaj, marine, thiab siab - purity daim ntaub ntawv.
Dab tsi yog tshwj xeeb txog 904L stainless hlau?
Tsis zoo li lwm yam stainless hlau, 904L stainless hlau tuaj yeem tiv thaiv kev tawm tsam los ntawm cov tshuaj chlorides, sulfuric acid, thiab lwm yam tshuaj corrosive yam tsis muaj degrading. Qhov no ua rau nws yog ib qho kev xaiv zoo tshaj plaws rau kev lag luam uas xav tau cov ntaub ntawv siv rau hauv ib puag ncig corrosive, xws li kev lag luam chemical thiab seawater desalination industries.
904L stainless hlau yog cov khoom siv ruaj khov thiab muaj ntau yam. Nws tau txais txiaj ntsig zoo rau nws qhov tshwj xeeb corrosion thiab kub tsis kam, nrog rau nws zoo weldability. Nws yog txawm siv hauv Rolex stainless hlau watches; lub siab-kawg watchmaker hloov los ntawm 304L stainless hlau mus rau 904L stainless hlau tom qab pom tias 904L stainless hlau muaj superior corrosion thiab pitting kuj, ua rau lawv watches ib lub neej kev nqis peev txawm rau cov neeg uas hnav lawv nquag.
904L stainless hlau Chemical Compositions
| Element | % Tam sim no (hauv daim ntawv khoom) |
|---|---|
| Cov pa roj carbon (C) | 0.02 |
| Silicon (Si) | 0.70 |
| Manganese (Mn) | 2.00 |
| Phosphorus (P) | 0.03 |
| Sulfur (S) | 0.01 |
| Chromium (Cr) | 19.00 - 21.00 |
| Nickel (Ni) | 24.00 - 26.00 |
| Nitrogen (N) | 0.15 |
| Molybdenum (hli) | 4.00 - 5.00 |
| Copper (Cu) | 1.20 - 2.00 |
| Hlau (Fe) | Tshuav |
Mechanical Properties:
Cov yam ntxwv ntawm lub zog ntawm 904L yog piv rau cov khoom siv austenitic stainless hlau, nrog elongation ntawm 40%, yield zog ntawm 220 MPa, thiab lub zog tensile ntawm 520 MPa (qhov tsawg kawg nkaus ntawm chav tsev kub).
Cov yam ntxwv tseem ceeb ntawm 904L stainless hlau:
Corrosion kuj:Vim muaj cov npib tsib xee, molybdenum, thiab tooj liab, nws pom zoo tiv thaiv sulfuric acid, phosphoric acid, thiab lwm yam acids txo, nrog rau pitting thiab kev nyuaj siab corrosion tawg los ntawm chlorides.
Weldability:Zoo heev; cov ntsiab lus carbon tsawg tiv thaiv intergranular corrosion (sensitization) tom qab vuam; tsis muaj preheating lossis post-weld heat treatment yog xav tau.
Formability thiab toughness:Muaj zoo heev toughness, ductility, thiab formability, txawm nyob rau hauv qis kub.
Tsis yog -magnetic:Nws cov qauv austenitic ua rau nws tsis yog -sib nqus, uas yog qhov zoo hauv qee yam kev siv, xws li cov rooj zaum saib (Rolex siv cov khoom no).
Kub tiv taus:Cov khoom pov thawj zoo oxidation tsis kam thiab tswj kev ua haujlwm zoo ntawm qhov kub txog li 400℃(750℃F).
Lub ntsiab zoo piv rau 316L stainless hlau:
Muaj zog tiv thaiv kev ntxhov siab corrosion cracking hauv chloride ib puag ncig.
Zoo corrosion kuj rau sulfuric acid thiab lwm yam acids txo.
Cov ntsiab lus alloy siab dua (nickel, molybdenum, tooj liab), ua rau muaj kev ua tau zoo dua.
Gnee Steel tshwj xeeb hauv kev tsim khoom ntawm ntau yam khoom siv hlau stainless. Gnee Steel cov khoom ntim khoom suav nrog: Hlau Strapping: Cov kav dej nrog ib txoj kab uas hla ntawm 3 ntiv tes los yog tsawg dua yog feem ntau khi ua ke nrog polypropylene zaj duab xis los tiv thaiv xeb thaum thauj dej hiav txwv, thiab tom qab ntawd khi nrog cov hlua hlau. Ntoo Cases / Crates: Cov kav dej feem ntau yog ntim rau hauv cov rooj ntoo lossis cov thawv los tiv thaiv cov kav dej thaum lub sij hawm thauj mus los, tshwj xeeb tshaj yog cov uas ntev dua los yog muaj qhov loj dua. Seaworthy Export Ntim: Cov neeg muag khoom feem ntau siv cov txheej txheem seaworthy export ntim, uas tuaj yeem suav nrog ntau yam khoom siv thiab cov txheej txheem los tiv thaiv cov kav dej thaum thauj. Tarpaulin Ntim: Qhov no tiv thaiv los nag, dej hiav txwv, thiab lwm yam sab nraud los ntawm kev nkag mus rau lub thawv xa khoom thaum thauj. Gnee Steel tshwj xeeb hauv kev tsim thiab muag cov ntaub ntawv alloy. Gnee Steel cov khoom siv dav siv hauv aerospace, tshuaj, hluav taws xob, tsheb, thiab hluav taws xob nuclear, thiab peb tuaj yeem muab cov khoom siv alloy customized raws li cov neeg siv khoom xav tau. Rau cov khoom siv alloy pricing lossis customized alloy cov ntaub ntawv daws teeb meem, thov hu rau peb rau ib qho kev tsocai:ru@gneesteelgroup.com